The construction of the fuselage will be as such:
-forward section thru the cockpit area
-the air inlets in the nose
-forward landing gear bay
-fuselage continues aft
-center section with wing spar cut outs and main gear bays
-lower engine exhaust
-aft fuselage boom.
the build can be performed either from front to back or back to front as long as the fuselage mates at section 14 ( where the lower engine exhaust is located ).
Isaac